77536656 has 40 divisors (see below), whose sum is σ = 222560160. Its totient is φ = 25845408.

The previous prime is 77536651. The next prime is 77536681. The reversal of 77536656 is 65663577.

It is not an unprimeable number, because it can be changed into a prime (77536651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89310 + ... + 90173.

It is an arithmetic number, because the mean of its divisors is an integer number (5564004).

Almost surely, 2^77536656 is an apocalyptic number.

It is an amenable number.

77536656 is an abundant number, since it is smaller than the sum of its proper divisors (145023504).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77536656 is a wasteful number, since it uses less digits than its factorization.

77536656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179500 (or 179488 counting only the distinct ones).

The product of its digits is 793800, while the sum is 45.

The square root of 77536656 is about 8805.4901056102. The cubic root of 77536656 is about 426.4181571515.

The spelling of 77536656 in words is "seventy-seven million, five hundred thirty-six thousand, six hundred fifty-six".